• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Overheating Mystery

Tomm1468

Member
Joined
Apr 22, 2021
Messages
36
Reaction score
12
Points
8
Location
Olympia
Vehicle Year
1995
Make / Model
Ranger XLT
Transmission
Automatic
Just to clarify; so did you just swap the original fan back in?
So, when I bought the truck it was not running, and the fan was actually destroyed. that's why I bought a new one. so no I didn't put the original back in, but I had to request a specifically 4.0 fan since the 3.0 fan is apparently set backward.
 


RonD

Well-Known Member
Joined
Jun 2, 2012
Messages
21,999
Reaction score
5,322
Points
113
Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
Yes, water pumps on the 4.0l and 3.0l rotate in opposite directions, so fans would be different

General rule of thumb is if water pump pulley is smooth, no ribs for a belt, it turns counter-clockwise, opposite direction of the crank pulley/engine
If it has ribs then it turns clockwise, same direction as the crank pulley

4.0l has smooth pulley
3.0l has ribbed pulley
so they spin in opposite directions

Comes in handy for fan clutch nut as well
Smooth pulley means it a regular thread, right handed
Ribbed pulley means reverse thread, left handed
 

Sponsored Ad


Sponsored Ad

Top